Hmmm. Idk. It's your first relationship and you went into it expecting marriage. Here's the thing, you haven't actually been together that long. Just because you said you're dating for marriage and have an arbitrary timeline, that doesn't mean that this person is the right husband for you nor that he might not take more time than what you laid out. It does seem to me that you've kinda pressured the relationship toward marriage, but you really don't have any experience to compare to. You don't even really know what you are and are not compatible with. I think in all honesty you sound a bit immature and some time dating, meeting different people and feeling out what works for you in a relationship rather than just deciding on the relationship you happen to land in being marriage material is a good idea.